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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        h1{
            font-size: 30px;
            color: pink;
            font-weight: normal;
        }
    </style>
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<body>
    <h1>hello git 这是一个h1标签</h1>
    <h3>hello 我在master改了</h3>
</body>
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